I've got a different problem to everone else my I recently reinstalled windows and lost cortex command when i try to register it say i already have another copy registered but i dont have my old one what do i do

http://licensing.datarealms.com/reset.htm

There you go, just reset your key there

I need help too! It say unregistered but i have the code but it says "unknown error"

WTF?

I tried Licensing thing but it didn't work!

PM me your key and billing e-mail addy.

i have another key problem. i got an unregistered copy and when i used my key to unlock it ill have the registered copy but when if i were to quite then start up again i would have an unregistered copy again meaning i have to type in my key every time i start the game and because its just like im getting a new copy of the game every time i start the game up i cant save any maps that i edit.

how do i embed the key into the game so i dont have to type the key in every time.
i used trial pay thing to get the game for free dose that have something to do with it?

Do you have Vista/settings.ini is read only?

i have macintosh OSX